java -Xmx8000000000 -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem13_label57_true-unreach-call.c -------------------------------------------------------------------------------- This is Ultimate 0.1.23-d380424 [2018-10-25 01:44:24,046 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-25 01:44:24,048 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-25 01:44:24,061 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-25 01:44:24,061 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-25 01:44:24,062 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-25 01:44:24,063 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-25 01:44:24,065 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-25 01:44:24,067 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-25 01:44:24,068 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-25 01:44:24,069 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-25 01:44:24,069 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-25 01:44:24,070 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-25 01:44:24,071 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-25 01:44:24,072 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-25 01:44:24,073 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-25 01:44:24,074 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-25 01:44:24,076 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-25 01:44:24,078 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-25 01:44:24,080 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-25 01:44:24,081 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-25 01:44:24,082 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-25 01:44:24,085 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2018-10-25 01:44:24,094 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/settings/default/taipan/svcomp-Reach-64bit-Taipan_Default-EXP.epf [2018-10-25 01:44:24,109 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-25 01:44:24,110 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-25 01:44:24,111 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-25 01:44:24,111 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-25 01:44:24,111 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-25 01:44:24,111 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-25 01:44:24,111 INFO L133 SettingsManager]: * Explicit value domain=true [2018-10-25 01:44:24,112 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-25 01:44:24,112 INFO L133 SettingsManager]: * Octagon Domain=false [2018-10-25 01:44:24,112 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-25 01:44:24,112 INFO L133 SettingsManager]: * Log string format=TERM [2018-10-25 01:44:24,112 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-25 01:44:24,113 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-25 01:44:24,113 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-25 01:44:24,114 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-25 01:44:24,114 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-25 01:44:24,114 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-25 01:44:24,114 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-25 01:44:24,115 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-25 01:44:24,115 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-25 01:44:24,115 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-25 01:44:24,115 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-25 01:44:24,115 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-25 01:44:24,116 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-25 01:44:24,116 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-25 01:44:24,116 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-25 01:44:24,116 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:44:24,117 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-25 01:44:24,117 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-25 01:44:24,117 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-25 01:44:24,117 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-25 01:44:24,117 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-25 01:44:24,118 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-25 01:44:24,118 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-25 01:44:24,118 INFO L133 SettingsManager]: * To the following directory=dump/ [2018-10-25 01:44:24,118 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2018-10-25 01:44:24,181 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-25 01:44:24,197 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-25 01:44:24,201 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-25 01:44:24,203 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-25 01:44:24,204 INFO L276 PluginConnector]: CDTParser initialized [2018-10-25 01:44:24,204 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem13_label57_true-unreach-call.c [2018-10-25 01:44:24,284 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5293f344/d287cab2559341a1baad87879ede2e69/FLAG1e12b3b7d [2018-10-25 01:44:25,108 INFO L298 CDTParser]: Found 1 translation units. [2018-10-25 01:44:25,109 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/eca-rers2012/Problem13_label57_true-unreach-call.c [2018-10-25 01:44:25,148 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5293f344/d287cab2559341a1baad87879ede2e69/FLAG1e12b3b7d [2018-10-25 01:44:25,170 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/b5293f344/d287cab2559341a1baad87879ede2e69 [2018-10-25 01:44:25,183 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-25 01:44:25,185 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-10-25 01:44:25,186 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-25 01:44:25,187 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-25 01:44:25,195 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-25 01:44:25,196 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:44:25" (1/1) ... [2018-10-25 01:44:25,199 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@708368ba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:25, skipping insertion in model container [2018-10-25 01:44:25,199 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.10 01:44:25" (1/1) ... [2018-10-25 01:44:25,210 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-25 01:44:25,405 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-25 01:44:26,969 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:44:26,979 INFO L189 MainTranslator]: Completed pre-run [2018-10-25 01:44:27,729 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-25 01:44:27,771 INFO L193 MainTranslator]: Completed translation [2018-10-25 01:44:27,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27 WrapperNode [2018-10-25 01:44:27,772 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-25 01:44:27,773 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-25 01:44:27,773 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-25 01:44:27,773 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-25 01:44:27,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:27,866 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,375 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-25 01:44:28,376 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-25 01:44:28,376 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-25 01:44:28,376 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-25 01:44:28,392 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,592 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,628 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... [2018-10-25 01:44:28,673 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-25 01:44:28,673 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-25 01:44:28,674 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-25 01:44:28,674 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-25 01:44:28,675 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-25 01:44:28,742 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-25 01:44:28,742 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-25 01:44:28,743 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output4 [2018-10-25 01:44:28,743 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output4 [2018-10-25 01:44:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output3 [2018-10-25 01:44:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output3 [2018-10-25 01:44:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2018-10-25 01:44:28,744 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2018-10-25 01:44:28,744 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2018-10-25 01:44:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2018-10-25 01:44:28,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-25 01:44:28,745 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-25 01:44:28,746 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-25 01:44:28,746 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-25 01:44:39,931 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-25 01:44:39,932 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:44:39 BoogieIcfgContainer [2018-10-25 01:44:39,932 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-25 01:44:39,933 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-25 01:44:39,933 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-25 01:44:39,936 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-25 01:44:39,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.10 01:44:25" (1/3) ... [2018-10-25 01:44:39,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2232cccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:44:39, skipping insertion in model container [2018-10-25 01:44:39,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.10 01:44:27" (2/3) ... [2018-10-25 01:44:39,938 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2232cccc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:44:39, skipping insertion in model container [2018-10-25 01:44:39,938 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:44:39" (3/3) ... [2018-10-25 01:44:39,940 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem13_label57_true-unreach-call.c [2018-10-25 01:44:39,950 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-25 01:44:39,960 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-25 01:44:39,978 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-25 01:44:40,025 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-25 01:44:40,025 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-25 01:44:40,025 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-25 01:44:40,025 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-25 01:44:40,026 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-25 01:44:40,026 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-25 01:44:40,026 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-25 01:44:40,026 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-25 01:44:40,067 INFO L276 IsEmpty]: Start isEmpty. Operand 1120 states. [2018-10-25 01:44:40,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2018-10-25 01:44:40,078 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:44:40,079 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:44:40,081 INFO L424 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:44:40,087 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:40,087 INFO L82 PathProgramCache]: Analyzing trace with hash -143907844, now seen corresponding path program 1 times [2018-10-25 01:44:40,089 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:44:40,145 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:40,145 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:44:40,146 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:40,146 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:44:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:44:40,584 WARN L179 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 11 DAG size of output: 4 [2018-10-25 01:44:40,716 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:44:40,718 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:44:40,719 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-10-25 01:44:40,719 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:44:40,725 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-25 01:44:40,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-25 01:44:40,741 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:44:40,744 INFO L87 Difference]: Start difference. First operand 1120 states. Second operand 3 states. [2018-10-25 01:44:53,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:44:53,174 INFO L93 Difference]: Finished difference Result 3087 states and 5699 transitions. [2018-10-25 01:44:53,175 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-25 01:44:53,177 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 68 [2018-10-25 01:44:53,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:44:53,226 INFO L225 Difference]: With dead ends: 3087 [2018-10-25 01:44:53,226 INFO L226 Difference]: Without dead ends: 1965 [2018-10-25 01:44:53,244 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 2 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-10-25 01:44:53,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1965 states. [2018-10-25 01:44:53,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1965 to 1959. [2018-10-25 01:44:53,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1959 states. [2018-10-25 01:44:53,416 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1959 states to 1959 states and 3512 transitions. [2018-10-25 01:44:53,418 INFO L78 Accepts]: Start accepts. Automaton has 1959 states and 3512 transitions. Word has length 68 [2018-10-25 01:44:53,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:44:53,419 INFO L481 AbstractCegarLoop]: Abstraction has 1959 states and 3512 transitions. [2018-10-25 01:44:53,419 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-25 01:44:53,419 INFO L276 IsEmpty]: Start isEmpty. Operand 1959 states and 3512 transitions. [2018-10-25 01:44:53,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2018-10-25 01:44:53,436 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:44:53,437 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:44:53,437 INFO L424 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:44:53,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:44:53,438 INFO L82 PathProgramCache]: Analyzing trace with hash 484004430, now seen corresponding path program 1 times [2018-10-25 01:44:53,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:44:53,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:53,439 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:44:53,439 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:44:53,440 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:44:53,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:44:53,788 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:44:53,788 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:44:53,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:44:53,789 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:44:53,791 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:44:53,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:44:53,791 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:44:53,792 INFO L87 Difference]: Start difference. First operand 1959 states and 3512 transitions. Second operand 6 states. [2018-10-25 01:45:15,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:45:15,753 INFO L93 Difference]: Finished difference Result 7204 states and 13315 transitions. [2018-10-25 01:45:15,756 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:45:15,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 145 [2018-10-25 01:45:15,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:45:15,796 INFO L225 Difference]: With dead ends: 7204 [2018-10-25 01:45:15,797 INFO L226 Difference]: Without dead ends: 5251 [2018-10-25 01:45:15,809 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:45:15,815 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5251 states. [2018-10-25 01:45:15,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5251 to 5221. [2018-10-25 01:45:15,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5221 states. [2018-10-25 01:45:15,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5221 states to 5221 states and 8297 transitions. [2018-10-25 01:45:15,981 INFO L78 Accepts]: Start accepts. Automaton has 5221 states and 8297 transitions. Word has length 145 [2018-10-25 01:45:15,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:45:15,981 INFO L481 AbstractCegarLoop]: Abstraction has 5221 states and 8297 transitions. [2018-10-25 01:45:15,982 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:45:15,982 INFO L276 IsEmpty]: Start isEmpty. Operand 5221 states and 8297 transitions. [2018-10-25 01:45:15,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2018-10-25 01:45:15,993 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:45:15,993 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:45:15,995 INFO L424 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:45:15,995 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:45:15,995 INFO L82 PathProgramCache]: Analyzing trace with hash -1149053844, now seen corresponding path program 1 times [2018-10-25 01:45:15,995 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:45:15,996 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:45:15,997 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:45:15,997 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:45:15,997 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:45:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:45:16,441 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-25 01:45:16,441 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-25 01:45:16,442 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-10-25 01:45:16,442 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:45:16,442 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:45:16,443 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:45:16,443 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:45:16,443 INFO L87 Difference]: Start difference. First operand 5221 states and 8297 transitions. Second operand 6 states. [2018-10-25 01:45:29,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-25 01:45:29,597 INFO L93 Difference]: Finished difference Result 13953 states and 22260 transitions. [2018-10-25 01:45:29,603 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-25 01:45:29,603 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 176 [2018-10-25 01:45:29,604 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-25 01:45:29,651 INFO L225 Difference]: With dead ends: 13953 [2018-10-25 01:45:29,651 INFO L226 Difference]: Without dead ends: 8738 [2018-10-25 01:45:29,675 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-10-25 01:45:29,684 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8738 states. [2018-10-25 01:45:29,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8738 to 8648. [2018-10-25 01:45:29,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8648 states. [2018-10-25 01:45:29,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8648 states to 8648 states and 12558 transitions. [2018-10-25 01:45:29,932 INFO L78 Accepts]: Start accepts. Automaton has 8648 states and 12558 transitions. Word has length 176 [2018-10-25 01:45:29,933 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-25 01:45:29,933 INFO L481 AbstractCegarLoop]: Abstraction has 8648 states and 12558 transitions. [2018-10-25 01:45:29,933 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-10-25 01:45:29,934 INFO L276 IsEmpty]: Start isEmpty. Operand 8648 states and 12558 transitions. [2018-10-25 01:45:29,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2018-10-25 01:45:29,943 INFO L367 BasicCegarLoop]: Found error trace [2018-10-25 01:45:29,944 INFO L375 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-25 01:45:29,944 INFO L424 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-25 01:45:29,944 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:45:29,945 INFO L82 PathProgramCache]: Analyzing trace with hash -492046690, now seen corresponding path program 1 times [2018-10-25 01:45:29,945 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-25 01:45:29,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:45:29,946 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-25 01:45:29,946 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-25 01:45:29,946 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-25 01:45:29,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-25 01:45:30,390 INFO L134 CoverageAnalysis]: Checked inductivity of 198 backedges. 122 proven. 71 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-10-25 01:45:30,391 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-25 01:45:30,391 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-25 01:45:30,392 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 222 with the following transitions: [2018-10-25 01:45:30,394 INFO L202 CegarAbsIntRunner]: [0], [1], [2628], [2635], [2643], [2651], [2659], [2667], [2675], [2683], [2691], [2699], [2707], [2715], [2723], [2731], [2739], [2747], [2755], [2763], [2771], [2779], [2787], [2795], [2803], [2811], [2819], [2827], [2835], [2843], [2851], [2859], [2867], [2875], [2883], [2891], [2899], [2907], [2915], [2923], [2931], [2939], [2947], [2955], [2963], [2971], [2979], [2987], [2995], [3003], [3011], [3019], [3027], [3035], [3043], [3051], [3059], [3067], [3071], [3073], [3076], [3084], [3092], [3100], [3108], [3116], [3121], [3125], [3129], [3133], [3137], [3148], [3151], [3152], [3155], [4238], [4242], [4246], [4252], [4256], [4258], [4269], [4270], [4271], [4273], [4274] [2018-10-25 01:45:30,463 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-10-25 01:45:30,463 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-25 01:45:30,981 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-25 01:45:30,986 INFO L272 AbstractInterpreter]: Visited 82 different actions 82 times. Never merged. Never widened. Never found a fixpoint. Largest state had 26 variables. [2018-10-25 01:45:31,033 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-25 01:45:31,033 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-25 01:45:31,652 INFO L232 lantSequenceWeakener]: Weakened 212 states. On average, predicates are now at 71.7% of their original sizes. [2018-10-25 01:45:31,652 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-25 01:45:31,810 INFO L413 sIntCurrentIteration]: We have 220 unified AI predicates [2018-10-25 01:45:31,811 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-25 01:45:31,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-25 01:45:31,812 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [5] total 9 [2018-10-25 01:45:31,812 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-25 01:45:31,813 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-10-25 01:45:31,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-10-25 01:45:31,813 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-10-25 01:45:31,813 INFO L87 Difference]: Start difference. First operand 8648 states and 12558 transitions. Second operand 6 states. [2018-10-25 01:45:37,189 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-10-25 01:45:37,190 FATAL L292 ToolchainWalker]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger: modulus not positive at java.math.BigInteger.mod(BigInteger.java:2458) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:154) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.explicit.ExplicitValueValue.modulo(ExplicitValueValue.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:100) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:78) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.ConditionalEvaluator.evaluate(ConditionalEvaluator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:92) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.evaluator.BinaryExpressionEvaluator.evaluate(BinaryExpressionEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.handleAssumeStatement(NonrelationalStatementProcessor.java:363) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.processStatement(NonrelationalStatementProcessor.java:160) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:142) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalStatementProcessor.process(NonrelationalStatementProcessor.java:128) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:362) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.handleInternalTransition(NonrelationalPostOperator.java:353) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:125) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.nonrelational.NonrelationalPostOperator.apply(NonrelationalPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.applyInternally(CompoundDomainPostOperator.java:306) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:131) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.compound.CompoundDomainPostOperator.apply(CompoundDomainPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.applyPost(TermConjunctEvaluator.java:305) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$4(TermConjunctEvaluator.java:178) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computeFixpoint(TermConjunctEvaluator.java:198) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.lambda$1(TermConjunctEvaluator.java:150) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.util.TermConjunctEvaluator.computePost(TermConjunctEvaluator.java:93) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormanCachedPostOperation.applyPost(PoormanCachedPostOperation.java:308) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.applyPost(PoormansAbstractPostOperator.java:217) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:119) at de.uni_freiburg.informatik.ultimate.plugins.analysis.abstractinterpretationv2.domain.transformula.poorman.PoormansAbstractPostOperator.apply(PoormansAbstractPostOperator.java:1) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.lambda$17(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.mapCollection(DisjunctiveAbstractState.java:537) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.absint.DisjunctiveAbstractState.apply(DisjunctiveAbstractState.java:369) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalTransitionWithValidState(AbsIntHoareTripleChecker.java:352) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternalAbsInt(AbsIntHoareTripleChecker.java:249) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.AbsIntHoareTripleChecker.checkInternal(AbsIntHoareTripleChecker.java:181) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.CachingHoareTripleChecker.checkInternal(CachingHoareTripleChecker.java:98) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton$InternalSuccessorComputationHelper.computeSuccWithSolver(AbstractInterpolantAutomaton.java:359) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.chooseFalseSuccessor2(BasicAbstractInterpolantAutomaton.java:106) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:72) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:234) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.TotalizeNwa.internalSuccessors(TotalizeNwa.java:213) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ComplementDeterministicNwa.internalSuccessors(ComplementDeterministicNwa.java:121) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:216) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:208) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.addInternalsAndSuccessors(NestedWordAutomatonReachableStates.java:1066) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates$ReachableStatesComputation.(NestedWordAutomatonReachableStates.java:968) at de.uni_freiburg.informatik.ultimate.automata.nestedword.reachablestates.NestedWordAutomatonReachableStates.(NestedWordAutomatonReachableStates.java:188) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.computeDifference(Difference.java:137) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.Difference.(Difference.java:90) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.computeAutomataDifference(BasicCegarLoop.java:673) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.refineAbstraction(BasicCegarLoop.java:602) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:473) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:312) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:123) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) [2018-10-25 01:45:37,196 INFO L168 Benchmark]: Toolchain (without parser) took 72011.76 ms. Allocated memory was 1.5 GB in the beginning and 2.8 GB in the end (delta: 1.3 GB). Free memory was 1.4 GB in the beginning and 2.0 GB in the end (delta: -647.7 MB). Peak memory consumption was 634.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,197 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. [2018-10-25 01:45:37,197 INFO L168 Benchmark]: CACSL2BoogieTranslator took 2585.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,198 INFO L168 Benchmark]: Boogie Procedure Inliner took 603.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 805.3 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,199 INFO L168 Benchmark]: Boogie Preprocessor took 297.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,200 INFO L168 Benchmark]: RCFGBuilder took 11258.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 196.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -4.4 MB). Peak memory consumption was 677.8 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,201 INFO L168 Benchmark]: TraceAbstraction took 57262.12 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 281.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 143.0 MB). Peak memory consumption was 424.0 MB. Max. memory is 7.1 GB. [2018-10-25 01:45:37,207 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.5 GB. Free memory is still 1.4 GB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 2585.59 ms. Allocated memory is still 1.5 GB. Free memory was 1.4 GB in the beginning and 1.1 GB in the end (delta: 253.7 MB). Peak memory consumption was 253.7 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 603.02 ms. Allocated memory was 1.5 GB in the beginning and 2.3 GB in the end (delta: 805.3 MB). Free memory was 1.1 GB in the beginning and 2.2 GB in the end (delta: -1.1 GB). Peak memory consumption was 73.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 297.20 ms. Allocated memory is still 2.3 GB. Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 11258.43 ms. Allocated memory was 2.3 GB in the beginning and 2.5 GB in the end (delta: 196.1 MB). Free memory was 2.2 GB in the beginning and 2.2 GB in the end (delta: -4.4 MB). Peak memory consumption was 677.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 57262.12 ms. Allocated memory was 2.5 GB in the beginning and 2.8 GB in the end (delta: 281.0 MB). Free memory was 2.2 GB in the beginning and 2.0 GB in the end (delta: 143.0 MB). Peak memory consumption was 424.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger: modulus not positive de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger: modulus not positive: java.math.BigInteger.mod(BigInteger.java:2458) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...